#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define rep(i, a, b) for (int i = (a); i <= (b); i++)
#define per(i, a, b) for (int i = (a); i >= (b); i--)
#define endl '\n'
const int N = 2e5 + 5;

int n;

void f(int s, vector<int>& data) {
  if (s > n) {
    for (int x : data) cout << x << ' ';
    cout << endl;
    return;
  }
  f(s + 1, data);     // unsel
  data.push_back(s);  // sel
  f(s + 1, data);
  data.pop_back();
}

int main() {
  ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
  cin >> n;
  vector<int> data;
  f(1, data);
  return 0;
}